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View Full Version : dynamic ajax content (modified)



traq
02-24-2009, 04:52 AM
1) Script Title: dynamic ajax content

2) Script URL (on DD): http://www.dynamicdrive.com/dynamicindex17/ajaxcontent.htm

3) Describe problem:

I had help modifying the dynamic ajax content script (I can't recall from who, but it was here on DD) to include only the element with the id="current" from the target page, instead of the entire page. It's worked perfectly until now.

...I hope I can explain this clearly.
The problem I've come across now is that when I use the script to include some external content on a page which also has an element with id="current", it only works *above* that element: below that element, it ignores the defined target and duplicates the "current" element on the same page instead.

for example:


[...]
<script type="text/javascript>
ajaxpage('otherpage', 'contentarea')
</script>

<div id="contentarea"></div>

<div id="current">blahblahwhatever</div>
[...]
works as intended, giving us:

("contentarea" div)----------------
| otherpage |
-----------------------------------
("current" div)-----------------
| blahblahwhatever |
--------------------------------
however,


[...]
<script type="text/javascript>
ajaxpage('otherpage', 'contentarea')
</script>

<div id="current">blahblahwhatever</div>

<div id="contentarea"></div>
[...]
gives us two instances of the "current" div, like so:

("current" div)-------------------------
| blahblahwhatever |
----------------------------------------
("contentarea" div)---------------------
| blahblahwhatever |
----------------------------------------

Any help would be appreciated.

Modified script:

/***********************************************
* Dynamic Ajax Content- Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

/*EDITED TO TARGET DIV ID=CURRENT*/

var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadedobjects=""
var rootdomain="http://"+window.location.hostname
var bustcacheparameter=""

function ajaxpage(url, containerid){
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
}
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
if (bustcachevar) //if bust caching of external page
bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', url+bustcacheparameter, true)
page_request.send(null)
}

function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
document.getElementById(containerid).style.display="none"
document.getElementById(containerid).innerHTML=page_request.responseText
document.getElementById(containerid).innerHTML=document.getElementById("current").innerHTML
document.getElementById(containerid).style.display="block"
}
}

/***********
function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
document.getElementById(containerid).innerHTML=page_request.responseText
}
**************/

function loadobjs(){
if (!document.getElementById)
return
for (i=0; i<arguments.length; i++){
var file=arguments[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
if (file.indexOf(".js")!=-1){ //If object is a js file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ //If object is a css file
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " //Remember this object as being already added to page
}
}
}
thanks very much